Creating & managing expectationsâthe key to field use and maintenance planning. As many parks and recreation and K-12 school. district turf managers know, the agendas of field. users and administrators are often contrary to. what is best for their fields.
The 1918 flu pandemic, commonly referred to as the Spanish flu, was a category 5 influenza pandemic caused by an unusually severe and deadly Influenza A virus strain of subtype H1N1. The difference between the influenza mortality age-distributions of the 1918 epidemic and normal epidemics.
The influenza or flu pandemic of 1918 to 1919, the deadliest in modern history, infected an estimated 500 million people worldwideâabout one-third of the planetâs population at the timeâand killed an estimated 20 million to 50 million victims.